Suzhou Huatong CCA busbar is the new composite material used for substituting the traditional copper bus bar. Owning almost equal electronic conductivity and excellent tensile strength, CCA busbar offers economic and weight-saving choice.
Main Raw Materials
Copper: Standard Cathode Copper (Cu), copper content ≥ 99.95%
Aluminum: High Pure Aluminum (Al), aluminum content ≥ 99.85%
| Parameters of CCA busbar | TLMY |
| Copper, Aluminum Volume Ratio | 20:80 |
| Copper, Aluminum Weight Ratio | 45:55 |
| Density(g/cm3) | 3.94 |
| DC Resistivity(Ωmm2/m) | ≤0.02488 |
| Tensile Strength(N/mm2) | ≥110 |
| Elongation Rate(%) | ≥7 |
| Interface Strength(mpa) | >40 |
Bending Diameter
|
Nominal Size (a)
|
Bending Diameter (mm)
|
Nominal Size (a)
|
Bending Diameter (mm)
|
|
a≤3
a≤4 a≤5 |
12
16 20 |
a≤6
a≤8 a≤10 a≤12 |
24
32 40 48 |
Suzhou Huatong CCA busbar is the new composite material used for substituting the traditional copper busbar. Owning almost equal electronic conductivity and excellent tensile strength, CCA busbar offers economic and weight-saving choice. Suzhou Huatong applies advanced solid-liquid machining processing technique, casts the aluminum liquid into the copper pipe then shapes under the pressure in the heating-cycle process, making the copper layer combining with aluminum layer firmly and permanently. Also, with its good flexibility and extensibility, the copper clad aluminum busbar is easy to shear, drill and bend. It is widely used in the electronic power equipment such as busway and high-low voltage switch cabinet and other different application environments.
The Characteristics of the Copper Clad Aluminum Busbar:
1. Excellent Electronic Conductivity: The volume proportion between copper and aluminum is 20:80, achieving 90% AC current-carrying capability of pure copper busbar.
2. Good Mechanical Property: with excellent tensile strength, flexibility and extensibility.
3. Low Weight: the density is only about 45% of pure copper so under the same volume, the cost will be greatly reduced.
4. Advanced Machining Processing Technique: Solid-Liquid machining processing technique to bond copper and aluminum permanently and firmly.
5. Good Extensity and Productivity: under special heat treatment, the product owns good plasticity and is well used in the process of bend, drill and shear.
6. Best Choice: Save copper material, low production cost and environment friendly.

